Xiaomi Poco M3 vs Nokia C21 Plus - Detailed Phone Comparison

Detailed Comparison

Specification

General

Launch Date November 27, 2020 April 29, 2022
Release Year 2020 2022

Physical

Volume 120.44 cm³ 107.57 cm³
Screen Size to Weight Ratio 3.3 "/g 3.66 "/g
Weight 198 g 178 g
Height 162.3 mm 164.8 mm
Width 77.3 mm 75.9 mm
Thickness 9.6 mm 8.6 mm
Foldable Design No No
Available Colors
  • Cool Blue
  • Poco Yellow
  • Power Black
  • Dark Cyan
  • Warm Gray

Display

Screen Size 6.53 " 6.52 "
Resolution 1080 x 2340 720 x 1600
Aspect Ratio 19.5:9 20:9
Screen-to-Body Ratio 83.4 % 82.1 %
Pixel Density 395 PPI 269 PPI
Refresh Rate N/A N/A
Typical Brightness 400 nits N/A
HBM Brightness N/A N/A
Peak Brightness N/A N/A

Hardware

Battery Capacity per Screen Area 140.71 mAh/in² 118.79 mAh/in²
Battery Density 49.82 mAh/cm³ 46.95 mAh/cm³
Battery Capacity 6000 mAh 5050 mAh
NFC Support No No
Chipset Qualcomm SM6115 Snapdragon 662 (11 nm) Unisoc SC9863A (28 nm)
CPU Octa-core (4x2.0 GHz Kryo 260 Gold & 4x1.8 GHz Kryo 260 Silver) Octa-core (4x1.6 GHz Cortex-A55 & 4x1.2 GHz Cortex-A55)
GPU Adreno 610 IMG8322

Connectivity

USB Version 2.0 2.0
OTG Support 1
DisplayPort
DisplayPort Version N/A N/A
USB Features USB Type-C 2.0, OTG microUSB 2.0

Software

Operating System Android Android
Initial OS Version 10 11
Maximum OS Version

Comparison Summary

Smartphone Comparison: Xiaomi Poco M3 vs. Nokia C21 Plus

1. Specifications Comparison

FeatureXiaomi Poco M3Nokia C21 PlusPractical Impact
Design
Dimensions162.3 × 77.3 × 9.6 mm164.8 × 75.9 × 8.6 mmPoco M3 is wider and thicker, may feel bulkier. C21 Plus is taller, but thinner and more compact.
Weight198g178gC21 Plus is significantly lighter, more comfortable for one-handed use and extended periods.
Display
Size6.53"6.52"Negligible difference in screen size. Both are large enough for media consumption.
Resolution1080x2340720x1600Poco M3 has a noticeably sharper display. Text and images will look clearer.
PPI395269Poco M3 has significantly higher pixel density, meaning finer details and less pixelation.
TechnologyIPS LCDIPS LCDSimilar display tech; both provide decent color reproduction and viewing angles.
Refresh Rate60Hz60HzStandard refresh rate on both; scrolling and animations are not particularly smooth.
Performance
ChipsetQualcomm Snapdragon 662 (11nm)Unisoc SC9863A (28nm)Poco M3 has a more powerful and efficient chipset, enabling smoother and faster overall performance, better gaming and multitasking.
AnTuTu Score185,028109,200Poco M3 benchmarks significantly higher, indicating better overall performance for apps, games, and multitasking.
GPUAdreno 610IMG8322Poco M3's GPU is better for gaming and graphics-intensive applications.
Camera
Rear Camera Resolution48MP13MPPoco M3 captures significantly more detailed photos.
Rear Camera Sensor Size1/2"Not specifiedPoco M3's larger sensor allows for better low-light performance.
Selfie Camera Resolution8MP5MPPoco M3 takes higher-resolution selfies with more detail.
Selfie Camera Aperturef/2.0f/2.2Poco M3 has slightly better low-light selfie capability.
Depth SensorNo2MPC21 Plus has a dedicated depth sensor for portrait mode photos.
Video Recording1080p@30fps1080p@30fpsBoth record at 1080p at 30fps.
Slow-Motion120 fps30fpsPoco M3 records slow-motion at 120 fps, providing a better experience than C21 Plus.
Battery
Capacity6000mAh4000mAhPoco M3's larger battery should translate to significantly longer battery life.
Charging18W10WPoco M3 charges faster, minimizing downtime.
Charger in box22.5WNot specifiedPoco M3 includes a faster charger out of the box.
Software
OSAndroid 10Android 11C21 Plus runs on a newer version of Android.
Connectivity
Wi-Fi802.11a/b/g/n/ac802.11b/g/nPoco M3 supports faster Wi-Fi standards.
Bluetooth5.0 LE4.2 LEPoco M3 has a more recent Bluetooth version, offering better performance and energy efficiency.
Storage & Memory
Internal Storage64 GB or 128 GB32 GB or 64 GBPoco M3 provides more storage options.
RAM4 GB or 6 GB2 GB or 4 GBPoco M3 has more RAM for better multitasking.
Expandable StorageNoNoNeither phone has expandable storage.
Audio
Audio QualityHi-Res Audio, Stereo SpeakersBasic audioPoco M3 provides better audio quality, including stereo output for an enhanced media experience.
Security
Fingerprint SensorSide-mountedRear-mountedSide-mounted sensor on Poco M3 can be easier to use in some situations.
Build
Screen ProtectionCorning Gorilla Glass 3UnknownPoco M3 has more robust screen protection.

2. Key Differences Analysis

Xiaomi Poco M3 Advantages:

  • Superior Display: Higher resolution and pixel density for a sharper visual experience.
  • Better Performance: More powerful chipset and GPU for faster app loading, smoother multitasking, and better gaming capabilities.
  • Larger Battery: Significantly longer battery life and faster charging with a more powerful charger included.
  • Better Camera: Higher-resolution rear and front cameras, larger sensor, and superior slow-motion recording.
  • Enhanced Audio: Stereo speakers and Hi-Res audio for a more immersive audio experience.
  • Improved Connectivity: Supports more modern Wi-Fi and Bluetooth standards.
  • More Storage and RAM: Comes with better storage and RAM options.
  • Screen Protection: Includes Corning Gorilla Glass 3 for better screen protection.

Practical Implications: Poco M3 is the clear winner for performance, media consumption, and camera quality.

Nokia C21 Plus Advantages:

  • Lighter Design: More comfortable to hold for extended use, lighter than the M3.
  • Newer Android OS: Ships with a more recent version of Android.
  • Depth Sensor: Dedicated depth sensor for better portrait photos.

Practical Implications: C21 Plus prioritizes lightweight design, and a more recent version of Android. However, it lags significantly in other key areas.

Significant Trade-offs:

  • Poco M3: Bulkier, heavier, runs an older version of android.
  • Nokia C21 Plus: Significantly weaker performance, lower-quality camera, smaller battery, and less crisp display.

3. User Profiles & Recommendations

Ideal User for Xiaomi Poco M3:

  • Budget-conscious consumers who prioritize performance, battery life, and camera quality.
  • Media enthusiasts who enjoy watching videos, playing games, and listening to music.
  • Users who want a reliable daily driver with good performance for apps and multitasking.
  • Casual photographers who need good image quality without spending a fortune.

Use Cases:

  • Long hours of gaming without needing to recharge.
  • Watching high-resolution videos.
  • Taking detailed photos and videos for social media.

Ideal User for Nokia C21 Plus:

  • Users who prioritize lightweight build over performance.
  • Those who want the latest Android version over other features.
  • Basic smartphone users who need a device for calling, texting, and light web browsing.
  • Users who occasionally take portrait photos.

Use Cases:

  • Simple, everyday use such as calls and emails.
  • Basic tasks that do not require significant processing power.

Price-to-Value Ratio:

  • Poco M3: Provides a much higher value given its performance, display, battery, and camera at its price point.
  • Nokia C21 Plus: Is a very basic phone and might be suitable only for users with very basic needs.

4. Decision Framework

Key Questions for Buyers:

  1. How important is performance for my daily use? (e.g., gaming, multitasking)
  2. Is battery life a critical factor?
  3. What are my requirements for camera quality?

Scenario-Based Recommendations:

  • Scenario 1: Performance and Media Consumption: If performance, display quality, battery life, and audio are key factors, the Xiaomi Poco M3 is the clear choice.

  • Scenario 2: Basic Use and Lightweight Design: If the user prioritizes a very lightweight design and a very basic set of features, the Nokia C21 Plus might suffice, but there are many other better value options on the market.

  • Scenario 3: Balanced Needs: If you need some performance but value a lightweight design, the Xiaomi Poco M3 is still a better choice because it provides significantly better features without losing much on the portability side of things.

My Choice

Based on the specifications and my experience, I would choose the Xiaomi Poco M3. The key reasons are:

  • Superior Performance: The Snapdragon 662 is a significantly more capable chipset compared to the Unisoc SC9863A, providing a smoother user experience, especially when multitasking and gaming.
  • Better Display Quality: The higher resolution and pixel density make the display noticeably sharper and more pleasant to use for reading, browsing, and watching videos.
  • Much Longer Battery Life: The 6000mAh battery is a huge advantage and ensures that I won't have to worry about charging the phone multiple times during the day.
  • Better Camera Performance: The higher resolution sensors, larger sensor size and better aperture ensures better quality photos in all lighting conditions.
  • Better value for money: The Poco M3 is just a better option for the price point.

While the Nokia C21 Plus is more lightweight, the performance deficit and the reduction in all key metrics (display, battery, camera) make it a much less compelling option. The Poco M3 provides significantly more features and better performance without compromising on portability to any meaningful degree.

Emily Harper
Emily Harper

Technology Insights Specialist

Dedicated technology writer specializing in mobile device analysis and technology communication. Expert at translating complex smartphone features into clear, actionable insights for diverse audiences.

Key Strengths:

  • Mobile technology analysis
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Bridging technical complexity with engaging, accessible narratives.